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Re: Call for Use Cases: Library Linked Data

From: Antoine Isaac <aisaac@few.vu.nl>
Date: Wed, 15 Sep 2010 17:05:02 +0200
Message-ID: <4C90E09E.9080002@few.vu.nl>
To: Klaas Dellschaft <klaasd@uni-koblenz.de>
CC: public-xg-lld <public-xg-lld@w3.org>
Hi Klaas,

Thanks a lot for your contribution!
Indeed quite some participants to the Library Linked Data group will be present in Cologne, including I suppose some DNB friends. It would be interesting to have a shared discussion with you there, and to see how various people look at the same case...



> Hi Antoine,
> below you can find a use case on which we worked during our
> collaboration with the German National Library. I will also be at the
> "Semantic Web in Bibliotheken" workshop in Cologne in November. There, I
> may also show you some details of our solution for this use case.
> Best,
> Klaas
> === Name ===
> Browsing and searching in data repositories annotated with different
> thesauri
> === Owner ===
> Klaas Dellschaft klaasd@uni-koblenz.de
> === Background and Current Practice ===
> In the library community, there exist different thesauri for annotating
> entries in library catalogues. Examples are the Dewey Decimal
> Classification, Library of Congress Subject Headings and the German
> Schlagwortnormdatei.
> === Goal ===
> Given that appropriate mappings between the thesauri are provided, a
> user should be able to browse and search in several library catalogues
> in parallel with the keywords from any of the used thesauri, i.e. the
> result list should also contain entries which have been annotated with
> corresponding keywords from the mapped thesauri.
> === Target Audience ===
> general public, librarians
> === Use Case Scenario ===
> The user Bob wants to search for books about a certain topic. Bob uses
> the catalgoue system of his local library. Bob thus formulates an
> appropriate query using the category system and the thesaurus of his
> local library (e.g. his local library uses the category system of the
> German National Library and the German Schlagwortnormdatei).
> Unfortunately, his local library has no books covering the searched
> topic. Bob thus also wants to search in the catalogues of further
> libraries which are participating in the interlending system. But some
> of the other libraries use another category system and thesaurus (e.g.
> the Dewey Decimal Classification and/or the Library of Congress Subject
> Headings). Thus, his original query has to be transformed in order to
> search in the catalogues of all libraries participating in the
> interlending system.
> This transformation is automatically done by the catalogue system of his
> local library using a mapping between the different categorization
> systems and thesauri. The system then returns a ranked list of relevant
> results from the searched library catalgogues.
> === Application of linked data for the given use case ===
> In order to support the above use case, it is important that there exist
> mappings (i.e. links) between the different thesauri and categorization
> systems. Providing this as linked open data, it becomes easier to
> integrate further thesauri and or categorization systems into the
> network of interlinked thesauri.
> === Existing Work (optional) ===
> The German National Library offers the German Schlagwortnormdatei also
> as linked open data. This data includes mappings to other vocabularies
> like the Dewey Decimal Classification.
> === Related Vocabularies (optional) ===
> SKOS, Dublin Core
> === Problems and Limitations (optional) ===
> A major problem of the current SKOS specification is that it is not
> clear how to provide mappings between a pre-coordinated and a
> post-coordinated vocabulary. But this kind of mapping is required for
> being able to use one (e.g. post-coordinated) vocabulary for also
> retrieving resources which have been annotated with another (e.g.
> pre-coordinated) vocabulary.
> At least three steps are required for enabling the above scenario:
> 1) The SKOS specification has to be extended in order to be able to also
> represent coordinated concepts.
> 2) In case of post-coordinated vocabularies, it has to be defined how to
> annotate complex topics to resources.
> 3) It has to be clarified how to interpret mappings between "simple
> concepts" and "coordinated concepts" during the retrieval.
> === References (optional) ===
> https://wiki.d-nb.de/display/LDS (German) Documentation of the linked
> data service of the German National Library. Includes a description of
> how the mapping between the German Schlagwortnormdatei and the Dewey
> Decimal Classification have been achieved.
Received on Wednesday, 15 September 2010 15:05:36 UTC

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